| Earth: USSA
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Wildcards IX: Jokertown Shuffle |
| Earth: USV Enterprise
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Star Trek, TNG: Q&A |
| Earth: Uberman of Axis Amerika
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Animal Man #23 |
| Earth: Ultimate Batman
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Planetary/Batman: Night on Earth |
| Earth: Ultimate Marvel
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Ultimate books |
| Earth: Ultimate version of Squadron Supreme
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Supreme Power #1 |
| Earth: Ultra Comics (33)
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The Multiversity #1 |
| Earth: Ultra-Humanite takes over
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Earth 2: Society #19 |
| Earth: Ultra-Jess
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The Variants #5 |
| Earth: Ulysses's brain was cloned
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Ultimates #12 |
| Earth: Uncle Ben with spider powers
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Amazing Spider-Man #12 |
| Earth: Undead uprising
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DIE!namite #1 |
| Earth: Unfriendly Neighborhood Spider-Clone
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Unlimited Access #4 |
| Earth: Ungrounded
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Ungrounded #1 |
| Earth: Unicycle Lawman
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Excalibur #50 |
| Earth: Universe destroyed by Nekron
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Star Trek/Green Lantern #1 |
| Earth: Universe-2
|
Challengers of the Fantastic #1 |
| Earth: Unpowered Captain Canuck
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Captain Canuck: Unholy War #1 |
| Earth: Urban Gothic
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Aftermath #1 |
| Earth: Valiant Four
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Heroes of the Multiverse #2 |
| Earth: Valiant High
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Valiant High #1 |
| Earth: Vampire Avengers
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Exiles #31 |
| Earth: Vampire Deadpool
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Deadpool Kills the Marvel Universe #4 |
| Earth: Vampire Eternals
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Uncanny X-Force #23 |
| Earth: Vampire's rule Manhattan
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Warheads: Black Dawn #1 |